A frac pump valve chest port connection sealing device

Abstract

The application discloses a kind of pipe orifice connection sealing devices of fracturing pump valve box, including fracturing pump valve box body, the through hole being communicated with electromagnetic communication pipe is opened in fracturing pump valve box body, and multiple slot connectors are arranged at the position of through hole in fracturing pump valve box body, and the outer end of multiple slot connectors is equipped with connector rubber ring, and the inner end of electromagnetic communication pipe is equipped with washer, and current change liquid channel is formed when connector rubber ring and washer are in contact seal, and electromagnetic communication pipe is equipped with liquid injection pipe being communicated with current change liquid supply device, and current change liquid supply device can inject current change liquid to current change liquid channel by liquid injection pipe being arranged on electromagnetic communication pipe when connector rubber ring and washer are in contact seal.This device seals and connects multiple slot connectors and electromagnetic communication pipe by the principle of attracting metal filler of electrified electromagnetic suction cup, makes connection more reliable, and uses the liquid-solid transition phenomenon of current change liquid after adding electric field, and makes connection more compact by filling gap with liquid.

Description

Technical Field

[0001] This invention relates to the field of fracturing pump valve box technology, and specifically to a fracturing pump valve box pipe port connection sealing device. Background Technology

[0002] Fracturing is a technology for developing resources from unconventional reservoirs. In this process, fracturing fluid (typically water mixed with sand, foaming agents, bactericides, and other chemicals) is injected into the rock formation to fracture it and release the resources within. To create sufficiently long fractures in the oil reservoir, high-pressure, high-capacity fracturing pumps and other equipment are required. The high pressure and long operation time place extremely high demands on the sealing of fracturing equipment pipelines. Existing equipment is prone to leakage problems at the connection between the fracturing pump valve box and the pipeline, significantly reducing the fracturing effect of the pump. Long-term leakage can also lead to pipe breakage and shorten the service life of the fracturing pump. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a sealing device for the valve box connection of a fracturing pump.

[0004] This invention is achieved using the following technical solution: a fracturing pump valve box pipe connection sealing device, comprising a fracturing pump valve box body, a multi-groove connector, an electromagnetic connecting pipe, and an electrorheological fluid supply device. The fracturing pump valve box body has a through hole communicating with the electromagnetic connecting pipe. A multi-groove connector is located at the through hole position on the fracturing pump valve box body. A connector rubber ring is provided on the outside of one end of the multi-groove connector, and a gasket is provided inside one end of the electromagnetic connecting pipe. The connector rubber ring and the gasket contact and seal the position between the electromagnetic connecting pipe and the through hole of the fracturing pump valve box body. When the connector rubber ring and the gasket are in contact and sealed, they form an electrorheological fluid channel. The electromagnetic connecting pipe is provided with an injection pipe communicating with the electrorheological fluid supply device. The electrorheological fluid supply device can inject electrorheological fluid into the electrorheological fluid channel through the injection pipe provided on the electromagnetic connecting pipe when the connector rubber ring and the gasket are in contact and sealed.

[0005] Furthermore, the multi-groove connector includes a fixed side, a limiting groove, and a straight pipe. The opening of the straight pipe is welded to the through hole of the fracturing pump valve box body. The straight pipe is provided with a fixed side. Multiple limiting grooves are opened on the right side of the fixed side of the straight pipe. The rubber ring of the connector is installed on the limiting groove of the multi-groove connector.

[0006] Furthermore, the electromagnetic connecting pipe includes a pipe, a gasket, an electromagnetic chuck, a pole, a liquid injection pipe, a liquid injection interface, a connecting pipe groove, and a rubber ring groove. Multiple sets of rubber ring grooves are provided inside the gasket, forming a group of multiple rubber ring grooves, each group being equidistant. A connecting pipe groove is provided between each group of rubber ring grooves. Each connecting pipe groove contains a pole with a line passing through the pipe and gasket and connecting to the outside of the pipe. Each connecting pipe groove contains a liquid injection pipe, one end of which has a liquid injection interface communicating with the electrorheological fluid, and the other end is located within the connecting pipe groove. Multiple electromagnetic chucks are provided on the outside of the pipe at corresponding positions within each group of rubber ring grooves.

[0007] Furthermore, the electrorheological fluid supply device includes an injection pump, a control switch, a horizontal tube, a vertical tube, and a hydraulic gauge. One end of the horizontal tube is connected to the injection pump, and the opening and closing of the horizontal tube is controlled by the control switch. The horizontal tube is provided with multiple vertical tubes, and each vertical tube is provided with a hydraulic gauge. The other end of the vertical tube is connected to the injection interface.

[0008] Furthermore, it also includes a clamping mechanism, which is bolted to the fixed side of the multi-groove connector and tightened to secure the position between the multi-groove connector and the electromagnetic connecting pipe.

[0009] Furthermore, the clamping mechanism includes a nut, a stud, a clamping plate, and a clamping limiting block. The clamping plate is a steel plate with a circular through hole in the middle, which allows the electromagnetic connecting pipe to pass through. The clamping plate contacts the end face of the pipe. A clamping limiting block is provided on one side of the clamping plate. The clamping limiting block surrounds the circular through hole on the clamping plate and is perpendicular to an extended ring on the clamping plate. The inner wall of the clamping limiting block contacts the outer wall of the electromagnetic connecting pipe. The clamping plate has a through hole. The stud passes through the through hole on the clamping plate and through the through hole on the multi-slot connector. The multi-slot connector and the electromagnetic connecting pipe are fastened together by the nut.

[0010] Furthermore, the connecting rubber ring includes a rubber ring protrusion, a metal filler, an elastic filler, a limiting protrusion, a connecting groove, and a rubber base. The connecting rubber ring mainly consists of three layers: a rubber base, an elastic filler, and a metal filler. Multiple limiting protrusions are provided on the inner side of the rubber base. These limiting protrusions engage with the limiting grooves of the multi-groove connecting member, securely mounting the connecting rubber ring onto the multi-groove connecting member. Multiple sets of elastic fillers are provided equidistantly on the outer side of the rubber base, and the elastic fillers are wrapped with rubber. Then, each set of elastic fillers... The outer side of each filler is provided with metal filler, which is also wrapped with rubber. Each set of metal fillers has a rubber ring protrusion on its outer rubber surface. The rubber ring protrusion engages with the rubber ring groove on the electromagnetic connecting pipe. The connecting rubber ring has multiple sets of metal fillers and elastic fillers. The spacing between the sets forms the connecting groove. When the connecting rubber ring and the gasket are in contact and sealed, the rubber ring protrusion engages with the rubber ring groove on the electromagnetic connecting pipe. The connecting groove and the connecting pipe groove on the electromagnetic connecting pipe form an electrorheological fluid channel.

[0011] Furthermore, the metal filler contains at least one of the three elements: iron, cobalt, and nickel.

[0012] The features of this invention are as follows: the multi-groove connector and the electromagnetic connecting pipe are tightly connected by attracting the metal filler through an energized electromagnetic chuck, making the connection more reliable. Furthermore, the liquid-to-solid phenomenon that occurs when electrorheological fluid is added to an electric field is utilized. Firstly, the gaps are filled with liquid to make the connection tighter. Secondly, the liquid after being energized can withstand greater pressure, better coping with the high pressure generated by the fracturing pump. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a sealing device for connecting the valve box of a fracturing pump according to the present invention.

[0014] Figure 2 This is a top view of a sealing device for connecting the valve box of a fracturing pump according to the present invention.

[0015] Figure 3 for Figure 2 A cross-sectional view along the AA direction.

[0016] Figure 4 This is a schematic diagram of the clamping mechanism of the present invention.

[0017] Figure 5 This is a schematic diagram of the electromagnetic communication tube structure of the present invention.

[0018] Figure 6 This is a schematic diagram of the connecting rubber ring structure of the present invention.

[0019] In the diagram: 10-Fracturing pump valve box body, 20-Multi-groove connector, 21-Fixed edge, 22-Limiting groove, 23-Straight pipe, 30-Electromagnetic connecting pipe, 31-Pipe, 32-Washer, 33-Electromagnetic chuck, 34-Pole post, 35-Injection pipe, 36-Injection interface, 37-Connecting pipe groove, 38-Rubber ring groove, 40-Electro-hydraulic supply device, 41-Injection pump, 42-Control switch, 43-Horizontal pipe, 44-Vertical pipe, 45-Hydraulic gauge, 50-Clamping mechanism, 51-Nut, 52-Stud, 53-Clamping plate, 54-Clamping limiting plate, 60-Connector rubber ring, 61-Rubber ring protrusion, 62-Metal filler, 63-Elastic filler, 64-Limiting protrusion, 65-Connector groove, 66-Rubber base, 70-Electro-hydraulic channel. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] This invention provides a sealing device for the valve box connection of a fracturing pump, comprising, as shown in the figure Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a fracturing pump valve box port connection sealing device includes a fracturing pump valve box body 10, a multi-groove connector 20, an electromagnetic connecting pipe 30, and an electrorheological fluid supply device 40. The fracturing pump valve box body 10 has a through hole communicating with the electromagnetic connecting pipe 30. The multi-groove connector 20 is located at the through hole position on the fracturing pump valve box body 10. A connector rubber ring 60 is provided on the outside of one end of the multi-groove connector 20. A gasket 32 ​​is provided inside one end of the electromagnetic connecting pipe 30. The connector rubber ring 60... The connection between the connecting rubber ring 60 and the gasket 32 ​​is sealed and the electromagnetic connecting pipe 30 is sealed with the through hole of the fracturing pump valve box body 10. When the connecting rubber ring 60 and the gasket 32 ​​are in contact and sealed, they form an electrorheological fluid channel 70. The electromagnetic connecting pipe 30 is provided with an injection pipe 35 that is connected to the electrorheological fluid supply device 40. When the connecting rubber ring 60 and the gasket 32 ​​are in contact and sealed, the electrorheological fluid supply device 40 can inject electrorheological fluid into the electrorheological fluid channel 70 through the injection pipe 35 provided on the electromagnetic connecting pipe 30.

[0022] Among them, such as Figure 6As shown, the multi-groove connector 20 includes a fixed edge 21, a limiting groove 22, and a straight pipe 23. The opening of the straight pipe 23 is welded to the through hole of the fracturing pump valve box body 10. The straight pipe 23 is provided with a fixed edge 21. Multiple limiting grooves 22 are opened on the right side of the fixed edge 21. The connector rubber ring 60 is installed on the limiting groove 22 of the multi-groove connector 20.

[0023] Among them, such as Figure 5 As shown, the electromagnetic connecting pipe 30 includes a pipe 31, a gasket 32, an electromagnetic chuck 33, a pole post 34, a liquid injection pipe 35, a liquid injection interface 36, a connecting pipe groove 37, and a rubber ring groove 38. Multiple sets of rubber ring grooves 38 are provided inside the gasket 32, and these grooves are arranged in groups of multiple rubber ring grooves, each group being equidistant from each other. A connecting pipe groove 37 is provided between each group of rubber ring grooves 38. Each connecting pipe groove 37 contains a pole post 34, which has a line passing through the pipe 31 and the gasket 32 ​​and connecting to the outside of the pipe 31. Each connecting pipe groove 37 contains a liquid injection pipe 35, one end of which has a liquid injection interface 36 communicating with the electrorheological fluid, and the other end is located inside the connecting pipe groove 37. Multiple electromagnetic chucks 33 are provided on the outside of the pipe 31 at corresponding positions in each group of rubber ring grooves 38.

[0024] Among them, such as Figure 3 As shown, the electrorheological fluid supply device 40 includes a liquid injection pump 41, a control switch 42, a horizontal pipe 43, a vertical pipe 44, and a hydraulic gauge 45. One end of the horizontal pipe 43 is connected to the liquid injection pump 41, and the opening and closing of the horizontal pipe 43 is controlled by the control switch 42. Multiple vertical pipes 44 are provided on the horizontal pipe 43, and the hydraulic gauge 45 is provided on the vertical pipe 44. The other end of the vertical pipe 44 is connected to the liquid injection interface 36.

[0025] Among them, such as Figure 2 As shown, the clamping mechanism 50 is bolted to the fixed side 21 of the multi-groove connector 20. The clamping mechanism 50 is tightened to secure the position between the multi-groove connector 20 and the electromagnetic connecting pipe 30.

[0026] Among them, such as Figure 3 and Figure 4As shown, the clamping mechanism 50 includes a nut 51, a stud 52, a clamping plate 53, and a clamping limiting block. The clamping plate 53 is a steel plate with a circular through hole in the middle. The circular through hole allows the pipe 31 of the electromagnetic connecting pipe 30 to pass through, and the clamping plate 53 contacts the end face of the pipe 31. A clamping limiting block is provided on one side of the clamping plate 53. The clamping limiting block surrounds the circular through hole on the clamping plate 53 and is perpendicular to an extended ring of the clamping plate 53. The inner side wall of the clamping limiting block contacts the outer side wall of the pipe 31 of the electromagnetic connecting pipe 30. The clamping plate 53 has a through hole. The stud 52 passes through the through hole on the clamping plate 53 and through the through hole on the multi-slot connector 20. The multi-slot connector 20 and the electromagnetic connecting pipe 30 are fastened together by the nut 51.

[0027] Among them, such as Figure 6 As shown, the connecting rubber ring 60 includes a rubber ring protrusion 61, a metal filler 62, an elastic filler 63, a limiting protrusion 64, a connecting groove 65, and a rubber base 66. The connecting rubber ring 60 is mainly composed of three layers: the rubber base 66, the elastic filler 63, and the metal filler 62. Multiple limiting protrusions 64 are provided on the inner side of the rubber base 66. The limiting protrusions 64 engage with the limiting grooves 22 of the multi-groove connecting member 20, securely mounting the connecting rubber ring 60 onto the multi-groove connecting member 20. Multiple sets of elastic fillers 63 are provided equidistantly on the outer side of the rubber base 66, and the elastic fillers 63 are wrapped with rubber. Then, each set of elastic fillers... The outer side of each of the components 63 is provided with metal fillers 62, which are also wrapped with rubber. Each set of metal fillers 62 has a rubber ring protrusion 61 on its outer rubber surface. The rubber ring protrusion 61 engages with the rubber ring groove 38 on the electromagnetic connecting pipe 30. The connecting rubber ring 60 has multiple sets of metal fillers 62 and elastic fillers 63. The spacing between the sets forms the connecting groove 65. When the connecting rubber ring 60 and the gasket 32 ​​are in contact and sealed, the rubber ring protrusion 61 engages with the rubber ring groove 38 on the electromagnetic connecting pipe 30. The connecting groove 65 and the connecting pipe groove 37 on the electromagnetic connecting pipe 30 form an electrorheological fluid channel 70.

[0028] The metal filler 62 contains at least one of the three elements: iron, cobalt, and nickel.

[0029] The working principle of this invention is as follows:

[0030] When using this device, first connect the electromagnetic connecting pipe 30 to the multi-groove connector 20. Then, install the clamping mechanism 50 on the electromagnetic connecting pipe 30 and the multi-groove connector 20, and tighten the nut 51. At this time, the rubber ring 60 of the connector contacts the washer 32, forming an electrorheological fluid channel 70. Then, energize the electromagnetic chuck 33. After being energized, the electromagnetic chuck 33 attracts the metal filler 62 under the action of magnetic force, and securely connects the multi-groove connector 20 and the electromagnetic connecting pipe 30. Then, use the electrorheological fluid supply device 40 to inject electrorheological fluid into the electrorheological fluid channel 70. According to the reading of the hydraulic gauge 45, turn off the control switch 42. Then, energize the pole 34 to solidify the liquid electrorheological fluid. After that, the fracturing pump can work. After the fracturing pump finishes working, first turn on the control switch 42 to recover the electrorheological fluid into the injection pump 41. Then, turn off the electromagnetic chuck 33, loosen the nut 51 of the clamping mechanism 50, and pull out the electromagnetic connecting pipe 30. The task is completed.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sealing device for the connection of a fracturing pump valve box, comprising a fracturing pump valve box body, a multi-groove connector, an electromagnetic connecting pipe, and an electrorheological fluid supply device, characterized in that: The fracturing pump valve box body has a through hole communicating with an electromagnetic communication pipe. A multi-groove connector is located at the through hole position on the fracturing pump valve box body. One end of the multi-groove connector has a connecting rubber ring on its exterior, and one end of the electromagnetic communication pipe has a gasket inside its interior. The connecting rubber ring and the gasket contact and seal the position between the electromagnetic communication pipe and the through hole of the fracturing pump valve box body. When the connecting rubber ring and the gasket are in contact and sealed, they form an electrorheological fluid channel. The electromagnetic communication pipe has an injection pipe communicating with an electrorheological fluid supply device. The electrorheological fluid supply device can inject fluid into the electrorheological fluid channel through the injection pipe on the electromagnetic communication pipe when the connecting rubber ring and the gasket are in contact and sealed. The electrorheological fluid is introduced, and the electromagnetic connecting tube includes a pipe, a gasket, an electromagnetic chuck, a pole, a liquid injection pipe, a liquid injection interface, a connecting tube groove, and a rubber ring groove. Multiple sets of rubber ring grooves are provided inside the gasket, forming a group of multiple grooves, each group being equidistant. A connecting tube groove is provided between each group of rubber ring grooves. Each connecting tube groove contains a pole with a line passing through the pipe and gasket and connecting to the outside of the pipe. Each connecting tube groove contains a liquid injection pipe, one end of which has a liquid injection interface communicating with the electrorheological fluid, and the other end is located inside the connecting tube groove. Multiple electromagnetic chucks are provided on the outside of the pipe at corresponding positions in each group of rubber ring grooves.

2. The fracturing pump valve box pipe connection sealing device according to claim 1, characterized in that: The multi-groove connector includes a fixed side, a limiting groove, and a straight pipe. The opening of the straight pipe is welded to the through hole of the fracturing pump valve box body. The straight pipe is provided with a fixed side. Multiple limiting grooves are opened on the right side of the fixed side of the straight pipe. The rubber ring of the connector is installed on the limiting groove of the multi-groove connector.

3. The fracturing pump valve box pipe connection sealing device according to claim 1, characterized in that: The electrorheological fluid supply device includes an injection pump, a control switch, a horizontal tube, a vertical tube, and a hydraulic gauge. One end of the horizontal tube is connected to the injection pump, and the opening and closing of the horizontal tube is controlled by the control switch. Multiple vertical tubes are provided on the horizontal tube, and a hydraulic gauge is provided on each vertical tube. The other end of the vertical tube is connected to the injection interface.

4. The fracturing pump valve box pipe connection sealing device according to claim 1, characterized in that: It also includes a clamping mechanism, which is bolted to the fixed side of the multi-groove connector and tightened to secure the position between the multi-groove connector and the electromagnetic connecting pipe.

5. The fracturing pump valve box pipe connection sealing device according to claim 4, characterized in that: The clamping mechanism includes a nut, a stud, a clamping plate, and a clamping limiting block. The clamping plate is a steel plate with a circular through hole in the middle, which allows the electromagnetic connecting pipe to pass through. The clamping plate contacts the end face of the pipe. A clamping limiting block is provided on one side of the clamping plate. The clamping limiting block surrounds the circular through hole on the clamping plate and is perpendicular to an extended ring on the clamping plate. The inner wall of the clamping limiting block contacts the outer wall of the electromagnetic connecting pipe. The clamping plate has a through hole. The stud passes through the through hole on the clamping plate and through the through hole on the multi-slot connector. The multi-slot connector and the electromagnetic connecting pipe are fastened together by the nut.

6. The fracturing pump valve box pipe connection sealing device according to claim 1, characterized in that: The connecting rubber ring includes a rubber ring protrusion, a metal filler, an elastic filler, a limiting protrusion, a connecting groove, and a rubber base. The connecting rubber ring is mainly composed of three layers: a rubber base, elastic filler, and metal filler. Multiple limiting protrusions are provided on the inner side of the rubber base. These limiting protrusions engage with the limiting grooves of the multi-groove connector, securely mounting the connecting rubber ring onto the multi-groove connector. Multiple sets of elastic fillers are provided equidistantly on the outer side of the rubber base, and the elastic fillers are wrapped with rubber. Each set of elastic fillers... The outer side is provided with metal filler, which is also wrapped with rubber. Each set of metal fillers has a rubber ring protrusion on the outer rubber surface. The rubber ring protrusion engages with the rubber ring groove on the electromagnetic connecting pipe. The connector rubber ring has multiple sets of metal fillers and elastic fillers. The spacing between the sets forms the connector groove. When the connector rubber ring and the gasket are in contact and sealed, the rubber ring protrusion engages with the rubber ring groove on the electromagnetic connecting pipe. The connector groove and the connecting pipe groove on the electromagnetic connecting pipe form an electrorheological fluid channel.

7. A sealing device for connecting the valve box of a fracturing pump according to claim 6, characterized in that: The metal filler contains at least one of the three elements: iron, cobalt, and nickel.

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